atapi_cmd_type(9) [centos man page]

ATAPI_CMD_TYPE(9)						  libata Library						 ATAPI_CMD_TYPE(9)

NAME

       atapi_cmd_type - Determine ATAPI command type from SCSI opcode

SYNOPSIS

       int atapi_cmd_type(u8 opcode);

ARGUMENTS

       opcode
	   SCSI opcode

DESCRIPTION

       Determine ATAPI command type from opcode.

LOCKING

       None.

RETURNS

       ATAPI_{READ|WRITE|READ_CD|PASS_THRU|MISC}

AUTHOR

       Jeff Garzik
	   Author.

COPYRIGHT

Kernel Hackers Manual 3.10					     June 2014							 ATAPI_CMD_TYPE(9)

sysfs(2)							System Calls Manual							  sysfs(2)

NAME

       sysfs - get file system type information

SYNOPSIS

DESCRIPTION

       is used to return information about the file system types configured in the system.  The number arguments accepted by varies and depends on
       the opcode.

       The current recognized opcodes and their functions are:

	      Translate      fsname, a null-terminated file-system type identifier, into a file-system type index.

	      Translate      fs_index, a file-system type index, into a null-terminated file-system type identifier and write it into  the  buffer
			     pointed  to  by buf; this buffer must be at least of size as defined in If there is no file-system type configured at
			     fs_index, a null string is returned for the file-system type identifier.

	      Return	     one more than the largest file system type configured.  This is not the  number  of  file	system	types  configured,
			     because the type numbers may not be contiguous.  See the example below.

RETURN VALUE

       Upon  successful completion, returns the file-system type index if the opcode is a value of 0 if the opcode is or the number of file system
       types configured if the opcode is Otherwise, a value of -1 is returned and is set to indicate the error.

ERRORS

       fails if one or more of the following are true and sets to the value indicated:

	      fsname	  points to an invalid file-system identifier; fs_index is negative or greater than the largest  file-system  type  index;
			  opcode is invalid.

	      buf	  or fsname points to an invalid user address.

EXAMPLES

       List the filesystem types configured in the system.

																	  sysfs(2)